Mixing-machine.



F. T. AR

MIXING MA APPLICATION FILED 1911.

1 41,947, Patented Oct. 22 12.

5 SHEETS-SHE P. T. ARNOLD.

MIXING MACHINE.

APPLICATION FILED 00T.25,1911

1,041,947, ()0 Patented Oct. 22, 1912.

J) 5 SHEETSSHEET 2.

LO 0 O 3 QWWKQQQ 'T' wwww Afforney F. T. ARNOLD.

MIXING MACHINE.

APPLICATION FILED OCT. 25, 1911.

Patented 0013.. 22, 1912.

5 SHEETSSHEET 3 T J TTnold I. T. ARNOLD.

MIXING MACHINE.

APPLICATION FILED OCT. 25, 1911.

5 SHEETS-SHEET 4.

[.VVAZVTOR T m n m d Patented Oct. 22, 1912.

W/mush F. T. ARNOLD.

MIXING MACHINE.

APPLICATION FILED OCT. 25, 191l 1,041,947., Patented 0013.22, 1912.

5 SHEETSSHBET 5.

To all whom it may I view of the complete improvement,

STATES PATENT-OFFICE. 1

FREDERICK 'r. mom), or win: mama swarms Am.

' Be it known that I, FREDERICK T. An-. NOLD, captain and quartermaster,United States Army, a citizen of the United States,

residing at New London, in the count of New London and State ofConnecticut, ave

invented COI'talIl. new and useful Improvements'in Mixing-Machines; andI do hereby declare the following to be a .full, clear,

and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to mixing machines and. more particularly to adevice of this character employed for mixing concrete,

mortar, etc., and is an improvement over my former Patent Number966,639, dated Aug. 9, 1910.

A i object of the invention is to providea mixing machine which will bepracticall in the orm of an octahedron and whic will thoroughly mix thematerial during the transportation thereof to the place at which it isto be used.

Another object is to simplify 'and improve the construction andoperation of the various ,parts of the machine.

Other objects and advantages will be hereinafter set forth and pointedout in the specification and claims.

In the accompanying drawings which are made a part of this application,Figure 1, a side elevational view of the complete device, Fig. 2, is adetail view of the dog, Fig. 3, is a similar view looking at the upperside of said dog, Fig. 4, is a topplan 1g. 5, is a detail view of one ofthe blades, Fig. 6, is a similar view, looking at the side thereof, saidview being taken at right angles to Fig. 5, Fig. 7, is a horizontalsectional view throu h the complete machine, the crossbar of the handlebeing broken away, Fig. 8, is a fragmentary view, showing the manner ofhinglng the lid' or door, Fig. 9, is a fragmentary sectional view,throughFig. 4 on the. line 9-9 of said figure, Fi 10, is a Specificationof Letters Eatent. Application filed October 25,:1911. Serial No.656,599.

Y m'xme-macmna.

Patented0ct.2 2,1912.

view of theoctahedral mixing hopper the several views, 1 represents the'octahedral mixing hopper which is formed, as shown in Fi ing prefera'by in one piece and bent along the mes 2, making sides of substantiallytriangular form with the corners cut away or made square, against whichcorners the similarly formed corners of the end pieces 3 are engaged.The cover or door 4 is provided with the hinges 5 along one edge whichhinges are also secured along the edge 6 of one of the sides of the body1, it being understood that'a space is left between two of the sectionsor sides of the body 1, between the ed e 6 of one section .13, 14 and15, the body beand the corresponding e ge of the next section and thatthe door 4 covers this opening and takes the place of the missingsection. The door or cover 4 also carries upon its upper face aplurality of latching leversshaped slots 10 of the latch plates 11 car-'ried by the adjacent sections of the hopper 1 and by one end 3, saidlatch plates 11 having their slotted portions spaced from the section orend to which they are secured and projected beyond the edge of the coveror door 4 when the latter is in closed position. Itwill be seen thatwhen the handles 12 of the lever 7 are grasped and the beveled extendedportions 9 thereof forced within the correspondingly formed slots 10 inthe plates 11, the cover 4 will be drawn tightly against the adjacentedges of the sections of the hopper or against the knife edges 13 of theclosure strips 14 secured along and projecting beyond the edges of .thesections of said hopper and of the end thereof, thus forming a watertight closure around the edge of the door 4, making it impossible forany of the contents of the hopper to escape between thev door 4 and theadjacent sections.

2 eanna? If desired, the sections of the hopper 1 may be so formed andthe blank bent along the lines 2 between the sections to leave spaces atthe squared corners of said sections near the opposite ends of thehopper, these ,spaces being filled by the small sectionsflpr plateswhich are preferabl of substantially rectangular form and w ich alsocarry the hopper'rotating handles 16, by means of which the hopper maybe readily rotated by hand, if preferred, to thoroughly mix the contentsof said hoppplr.

t will be clearly seen that by ben the blank alon the lines 2, a hopperin the orm of an cot-a edron is presented, which form will serve tothoroughly mix orco-min le the contents of the hopper by throwing t esame against first one side and then another as said hopper is caused torotate.

Each end 3 of the hopper 1 is provided with a central opening 17 throughwhich a shaft 18, is extended, said shaft projecting for some distancefrom either end of the octahedral hopper. The bearing sleeves 19 aresecured upon the shaft 18 and have the flanges 20 which are secured tothe ends 3 of the mixing hopper, thus forming bearings for the oppositeends 3 of the mixing hopper and locking said hopper .upon the shaft 18,the sleeve portions of the bearings- 19 extending through the centralopenings 17 and the opposite ends of the hopper resting upon theseflanged portions of said bearings. It will be understood that theflanged portion of the bearings 19 also extend outwardly from the ends 3of said mixing hopper and the hubs 21.. workv against the ends of theflanged portions or are spaced therefrom by suitable spacing washers22,- the hubs 21 working loosely upon the shaft 18. Outwardly of thehubs 21' are the short handles 23 within the outer end of which arethreaded the pipe sections passed through the ends of the shaft.

Mounted upon the shaft 18, within the octahedral mixing hopper 1 are theagitating blades or knives 28 which are twisted or given a oneqllllarter turn about midway their length, as s own at 28, to increasethe strength thereof. One half of the knives or blades 28 serve toagitate the material within the hopper as the latter is rotated and saidmaterial thrown a ainst the knives, as

will be later clearly un erstood. The other half of each blade, that isfrom its turn portion 29 tothe end serves to hold the other half oragitating ortion of the blade in extended position rom the shaft 18.About midway the securing or holding half of the blade is provided thesemi-circular or shaft engaging portion 30 which. is adapted forengagement upon the shaft 18, and to either side of this portion isprovided an opening 31 for the reception of a bolt or rivet which alsopasses through. similar openings of a clamping number (not shown) whichalso fits over the shaft 18, the bolts or rivets serving to connect thesecuring or holdin end of the blade and theclamping num er and hold thesame tightly against the shaft 18.

Carried upon the inner side of one of the be in the form of a hoopinstead ofa segment and is secured in 'position, spaced from the innerside of the wheel by means of the spacing and securingmembers 34connecting over the spokes 35 of the wheel 26.

' Pivoted upon the adjacent end 3 of the hopper 1 is the dog 36 havingthe tooth engaging projection 37 for engagement with the teeth 33 of thegear 32 when it is desired to transmit rotary motion from the gear 32-carried by the wheel 26 to the octahedral mixing hopper 1. The dog 36 isnormally held. with its extension or projection 37 in engagement withthe teeth 33, by means of- 'the dog controlling spring 38 having one endturned and secured to the rounded end 'of the dog36, as shown at 39while the remainder ofthe sprin 38 is straight and Works against the guie 40 upon the end of the hopper. The tooth engaging projection 37 of thedog 36 is forced from engagement of the teeth 33 by means of a cam 41pivoted upon the end 3 of the hopper 1 and having a handle 42 by meansof which the cam is rotated, .said cam working against the swingingportion of the dog 36. When the cam 41 is in one position the dog 36will be forced away from the teeth 33,'against the tension of the spring38 and when said cam is in its other position the dog extension 37 willbe forced into engagement with the teeth 33, by means of the springs 38,thereby locking the wheel 26 carrying the gear 32 with the hopper 1,causing the latter to rotate as the machine is moved along the wheel 26rotates. As the other wheel 26 is loose upon the shaft 18 and notconnected to the hopper 1, it will be evident that the hopper may becaused to revolve and thoroughly mix itscon-tents by swingingthe machinein a circle, causing the wheel26 carryand be utilized for drawing themachine along the ground and that the dog 36 may be held from engagementwith the teeth 33 during the transportation of the mixer from one placeto another or said dog 36 may be engaged with the gear 32 to cause theoctahedral mixing hopper 1 to revolve and mix the contents of saidhopper during the transportation of the machine from the main station tothe place at which the mixed material is to be used, thus saving time,labor and expense, and simplifying the many operations heretoforerequired in mixing concrete, mortar, etc.

If desired, bathe plates 43 may be suitably secured to the inner surfaceof the sides of the octahedral hopper 1 for the purpose of breaking andthoroughly mixing the ma terial. The bafiie plates may be of any formand placed at various angles to one another and any number of the samemay be employed. I have shown battle plates, however, formed of suitablestrips of metal bent at right angles, the narrow edges being secured tothe sides of the hopper and the wide edges projecting at right anglestherefrom, toward the center of the hopper. It will be evident that thebattle plates will serve to break lumps striking upon said plates andthus thoroughly mix the material as the hopper is rotated. The battleplates 43 may be employed in place of the agitating plates or knives 28or in connection therewith, as desired.

It will be seen that this mixer may be employed for mixing variousmaterials and that it will be positive and efficient in operation.Further, owing to the simplicity in the construction and operation, thecomplete machine may be manufactured and employed at a small cost andshould any of the parts become worn or broken or the connections becomeloose at the closure or edges of the door, said parts may be readilyrepaired or replaced without interfering with the other parts of thedevice, such work also being done at a small cost. The mixing of thematerials may be done with this machine by an extremely small number ofmen,

in fact it may be performed by one workman and does not require a greatdeal of experience.

\Vhat I claim is:

1. A mixing machine comprisin an axle, an octahedral hopper upon the axe, wheels upon the axle, means carried by the hopper and one wheel forcausing the hopper to rotate with the wheels to mix the contents of saidhopper, opposed batlle plates upon the inner faces of the sides of thehopper and positioned obliquely to the axle, and twisted blades ofvarious lengths projecting from the axle to assist in mixing materialwithin the hopper during rotation of the latter.

2. A mixing machine comprising the combination of a hopper formed ofconnected obliquely arranged side members, an axle. said hopper beingrigid upon the axle, wheels loosely mounted upon the axle, means forlocking the wheels with the hopper to rotate the latter to mix thecontents of said hopper, opposed bafiie plates upon the inner face ofthe side members of the hopper and arranged at various angles to theaxle, and twisted blades of various lengths projecting from the axle toassist in mixing material within the hopper during rotation of thelatter.

3. A mixing machine comprising an axle, an octahedral hopper rigid uponsaid axle, wheels upon the ,axle, means for rotating the wheels, meanscarried by the hopper and one wheel for causin the hopper to rotate withthe wheels to mix the contents of said hopper, opposed battle platesupon the inner faces of the substantially triangular sides of thehopper, and twisted blades of various lengths projecting from the axleto assist in mixin material within the hopper during rotation of thelatter.

In testimony whereof I have signed my name to this specification in thepresence of two subscribin witnesses.

FR EDERICK r. ARNOLD.

Witnesses GEO. E. LAMB, JNo. D. BADGER.

